Language:
كتاب الصلاة
8
Prayers (Salat)
(15)
Chapter: If someone offers Salat (prayer) in a garment bearing marks of a cross or picture, will he Salat be annulled? And what is forbidden thereof
(15)
بَابُ إِنْ صَلَّى فِي ثَوْبٍ مُصَلَّبٍ أَوْ تَصَاوِيرَ هَلْ تَفْسُدُ صَلاَتُهُ وَمَا يُنْهَى عَنْ ذَلِكَ

Narrated Anas:

`Aisha had a Qiram (a thin marked woolen curtain) with which she had screened one side of her home. The Prophet (ﷺ) said, "Take away this Qiram of yours, as its pictures are still displayed in front of me during my prayer (i.e. they divert my attention from the prayer).

حَدَّثَنَا أَبُو مَعْمَرٍ عَبْدُ اللَّهِ بْنُ عَمْرٍو، قَالَ حَدَّثَنَا عَبْدُ الْوَارِثِ، قَالَ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ صُهَيْبٍ، عَنْ أَنَسٍ، كَانَ قِرَامٌ لِعَائِشَةَ سَتَرَتْ بِهِ جَانِبَ بَيْتِهَا فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏ "‏ أَمِيطِي عَنَّا قِرَامَكِ هَذَا، فَإِنَّهُ لاَ تَزَالُ تَصَاوِيرُهُ تَعْرِضُ فِي صَلاَتِي ‏"‏‏.‏
Reference : Sahih al-Bukhari 374
In-book reference : Book 8, Hadith 26
USC-MSA web (English) reference : Vol. 1, Book 8, Hadith 371
  (deprecated numbering scheme)