Question Summary:
1. Is Salah accepted with a T¬-shirt? 2. Proof of Awwabeen Salah

Question Detail:

 
 
1. Is my salat accepted if I pray with a t-shirt which has figure of a man with body and face but no nose, ears, mouth, eyes.
2. I want to know in which hadith is mentioned salat tawabeen which is prayed after magrib.

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh. 
1) When a person performs Salah he should display the greatest amount of respect. That includes wearing respectable attire.
Allah Taala says in the Noble Quran;
  وَقُومُوا لِلَّهِ قَانِتِينَ
(And stand in front of your lord in a dignified manner 2-38)
 
A1 T-Shirt alone is not a respectable attire and thus not suitable to perform Salah only with a T-Shirt.
A form or figure of a person only with a body and face constitutes a picture of an animate object.[1].It is Makrooh (reprehensible) to perform Salah with clothes having pictures of animate objects.[2]
2. Salatul Awwabeen after Magrib Salah is understood from the following Ahadeeth.
 
عَنْ أَبِي هُرَيْرَةَ، أَنَّ النَّبِيَّ - صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ - قَالَ: "مَنْ صَلَّى بَعْدَ الْمَغْرِبِ سِتَّ رَكَعَاتٍ لَمْ يَتَكَلَّمْ بَيْنَهُنَّ بِسُوءٍ، عُدِلْنَ لَهُ بِعِبَادَةِ ثِنْتَيْ عَشْرَةَ سَنَةً"
Hazrat Abu Hurairah Radiallahu Anhu narrates that the Prophet of Allah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ   said that whosoever prays Six Rakats after Magrib Salah without indulging in any worldly affairs would derive reward equivalent to Twelve years Nafl prayers.[3]
قَالَ عَمَّارَ بْنَ يَاسِرٍ رَأَيْتُ حَبِيبِي رَسُولَ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ صَلَّى بَعْدَ الْمَغْرِبِ سِتَّ رَكَعَاتٍ، وَقَالَ: «مَنْ صَلَّى بَعْدَ الْمَغْرِبِ سِتَّ رَكَعَاتٍ غُفِرَتْ لَهُ ذُنُوبُهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ»
Hazrat  Ammar bin Yasir Radiallahu Anhu reports that I saw my beloved Rasullah   صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ pray Six rakats after Magrib Salah and he said whosoever prays Six Rakats after Magrib Salah all of his sins will be forgiven even if they equal to the froth of the ocean.[4]
And Allah Ta’āla Knows Best
 
Huzaifah Deedat
Student Darul Iftaa
Lusaka   , Zambia
Checked and Approved by,
Mufti Ebrahim Desai.