Question Summary:
Is it good to make my daughter a Hafidha & is this action of writing on the Ka’bah authentic?

Question Detail:

2 Questions to be asked
Q 1) Is it good to make my daughter a Hafiza of Quraan as her Quran Teacher (Our Masjid Imam) is saying she is very good in memorizing it. Some people, good in faith, says it is not in favor of a girl to make her hafiza as after getting married she will not have sufficient time to revise it and if she forgets because of her other duties then she will bear punishment from Allah. Please advise..
 
Q 2 ) I went for Umrah few days ago (by the grace of Allah). Some people in my masjid said that they heard from Ulemas that wrting the 85th Aya of Surah Qassas on the wall of Kaabah with the finger while taking there names, Allah will call them again and again for Umrah. 
 إِنَّ ٱلَّذِى فَرَضَ عَلَيۡكَ ٱلۡقُرۡءَانَ لَرَآدُّكَ إِلَىٰ مَعَادٍ۬‌ۚ 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
Answer 1:
There are innumerous virtues that have been elaborated in the Ahadith about being a Hafidh/Hafidha and for their parents.
Nabi ﷺ has mentioned:
مَنْ قَرَأَ الْقُرْآنَ وَاسْتَظْهَرَهُ، فَأَحَلَّ حَلاَلَهُ، وَحَرَّمَ حَرَامَهُ أَدْخَلَهُ اللَّهُ بِهِ الجَنَّةَ وَشَفَّعَهُ فِي عَشَرَةٍ مِنْ أَهْلِ بَيْتِهِ كُلُّهُمْ قَدْ وَجَبَتْ لَهُ النَّار
Translation:
“Whoever recites the Qur’an and memorises it, and regards what it makes lawful as lawful, and its unlawful as forbidden, will be admitted to Jannah (paradise) by Allah. Allah Ta’āla will also accept his intercession in respect of ten of his family members on whom the fire of hell was binding.” [Tirmidhi] ^[1]
In another Hadith Nabi ﷺ mentioned:
منْ قَرأ القرآن وعَمِلَ بما فيه، ألبِسَ والداه تاجاً يَومَ القيامة ضوؤه أحسنُ مِن ضوءِ الشَّمسِ في بيوتِ الدنيا لو كانت فيكم، فما ظَنُّكم بالذي عَمِلَ بهذا؟
Translation:
“Whosoever memorizes the Qur'an and acts according to its dictates, his parents will be made to wear a crown on the day of Qiyaamah (Judgment).  The brightness of which will be more intense than the brightness of the sun in your actual house. (If his parents reward is this)So what do you think of the person who acts according to it?” [Abu-Daud]^[2] 
Keeping in mind the virtues, if Allah has blessed you with this child who is able to memorize the Qur’an, it is your and her good fortune. Make her a Hafidha if she desires to be one.

Indeed it is worrisome for one to forget the Qur’an after having memorized it. However, this should not stop one from memorizing the Qur’an and hence depriving oneself from such great virtue. A woman can take out time to revise it even though she is married. Any husband would allow her to take out time to revise.

Answer 2:
May Allah accept your Umrah and take you there again and again. Aameen.
We are unable to locate the method stated from the Ahadith. However, these things are said by our pious elders out of experience. We should have faith in Allah Ta’āla, hope and make duaa (supplicate) that Allah calls us to His House again and again.
And Allah Ta’āla Knows Best
Safwaan Ibn Ml Ahmed Ibn Ibrahim  
Student Darul Iftaa
Limbe, Malawi 
Checked and Approved by,
Mufti Ebrahim Desai.
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سنن الترمذي ت بشار (5/ 21) - دار الغرب الإسلامي - بيروت [1]
 حَدَّثَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ: أَخْبَرَنَا حَفْصُ بْنُ سُلَيْمَانَ، عَنْ كَثِيرِ بْنِ زَاذَانَ، عَنْ عَاصِمِ بْنِ ضَمْرَةَ، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ، قَالَ: قَالَ رَسُولُ اللهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: مَنْ قَرَأَ الْقُرْآنَ وَاسْتَظْهَرَهُ، فَأَحَلَّ حَلاَلَهُ، وَحَرَّمَ حَرَامَهُ أَدْخَلَهُ اللَّهُ بِهِ الجَنَّةَ وَشَفَّعَهُ فِي عَشَرَةٍ مِنْ أَهْلِ بَيْتِهِ كُلُّهُمْ قَدْ وَجَبَتْ لَهُ النَّارُ
هَذَا حَدِيثٌ غَرِيبٌ، لاَ نَعْرِفُهُ إِلاَّ مِنْ هَذَا الوَجْهِ وَلَيْسَ لَهُ إِسْنَادٌ صَحِيحٌ، وَحَفْصُ بْنُ سُلَيْمَانَ أَبُو عُمَرَ بَزَّازٌ كُوفِيٌّ يُضَعَّفُ فِي الْحَدِيثِ
 
سنن أبي داود ت الأرنؤوط (2/ 583) -دار الرسالة العالمية [2] 
حدَّثنا أحمدُ بن عمرو بن السَّرح، أخبرنا ابنُ وهب، أخبرني يحيي بن أيوب، عن زبَّان بن فائد، عن سهل بن مُعاذ الجُهني عن أبيه، أن رسولَ الله - صلَّى الله عليه وسلم - قال: "منْ قَرأ القرآن وعَمِلَ بما فيه، ألبِسَ والداه تاجاً يَومَ القيامة ضوؤه أحسنُ مِن ضوءِ الشَّمسِ في بيوتِ الدنيا لو كانت فيكم، فما ظَنُّكم بالذي عَمِلَ بهذا؟"
____
إسناده ضعيف، لضعف زبان بن فائدة، وسهل بن معاذ. ابن وهب: هو عبد الله، ومعاذ: هو ابن أنس الجهني.
وأخرجه أبو يعلى (1493)، والحاكم في "المستدرك" 1/ 567، والبيهقي في "شعب الإيمان" (1948) وابن عبد البر في "التمهيد" 14/ 135 من طرق عن ابن وهب، بهذا الإسناد.
وأخرجه أحمد في "مسنده" (15645)، والطبراني في "الكبير"20/ (445) من طريقين عن زبان بن فائد، به.
وفي الباب عن عبد الله بن بريدة عن أبيه، عند الحاكم 1/ 568، وإسناده ضعيف فيه بشير بن المهاجر وهو وإن كان ضعيفاً يكتب حديثه للاعتبار والشواهد.
 
بذل المجهود (6/160) – دار البشائر الإسلامية
... "منْ قَرأ القرآن" أي أحكمه كما في رواية، أي: فأتقنه، وقال ابن حجر: أي حفظه عن ظهر قلب