مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 946
Prayer
The Supplication of the Tashahhud - Section 1
وَعَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ: لَا يَجْعَلْ أَحَدُكُمْ لِلشَّيْطَانِ شَيْئًا مِنْ صَلَاتِهِ يَرَى أَنَّ حَقًّا عَلَيْهِ أَنْ لَا يَنْصَرِفَ إِلَّا عَنْ يَمِينِهِ لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَثِيرًا يَنْصَرِفُ عَن يسَاره
‘Abdallah b. Mas'ud said, “None of you must give the devil any place in his prayer, thinking it is his duty when he leaves to turn only to his right. I have often seen God’s Messenger turning to his left when he went away.” (Bukhari and Muslim.)
Mishkat al-Masabih, 946مُتَّفَقٌ عَلَيْهِ (الألباني)