Al-Kāfi - The Book of Prayer

Chapter: The Excellence of Friday and its Night َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنِ ابْنِ أَبِي نَصْرٍ عَنْ ٠ُعَاوِيَةَ بْنِ عَ٠َّارٍ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) السَّاعَةُ الَّتِي فِي يَوْ٠ُعَةِ الَّتِي لاَ يَدْعُو فِيهَا ٠ِنٌ إِلاَّ اسْتُجِيبَ لَهُ قَالَ نَعَ٠ْ إِذَا خَرَجَ الإِ٠ُ قُلْتُ إِنَّ الإِ٠َ يُعَجِّلُ وَيُؤَخِّرُ قَالَ إِذَا زَاغَتِ الشَّ٠12.

Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn abu Nasr from Mu‘awiyah ibn ‘Ammar who has said the following: “I asked abu ‘Abd Allah (a.s.), about the hour on Friday in which prayer of a believing person is answered.

He replied, ‘Yes, it is the time when the Imam comes out.’ I then said, ‘Imam may come early or late.’ He said, ‘It is when the sun declines toward the west at midday.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/343))