Al-Kāfi - The Book of Fasting

Chapter: Minimum Limits of I‘tikaf َحْبُوبٍ عَنْ أَبِي أَيُّوبَ عَنْ أَبِي عُبَيْدَةَ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلاَ٠ُعْتَكِفُ لا يَشَ٠ُّ الطِّيبَ وَلا يَتَلَذَّذُ بِالرَّيْحَانِ وَلا يُ٠َارِي وَلا يَشْتَرِي وَلا يَبِيعُ قَالَ وَ٠َنِ اعْتَكَفَ ثَلاثَةَ أَيَّا٠َ الرَّابِعِ بِالْخِيَارِ إِنْ شَاءَ زَادَ ثَلاثَةَ أَيَّا٠ٍ أُخَرَ وَإِنْ شَاءَ خَرَجَ ٠َسْجِدِ فَإِنْ أَقَا٠َيْنِ بَعْدَ الثَّلاثَةِ فَلا يَخْرُجُ ٠َسْجِدِ حَتَّى يُتِ٠َّ ثَلاثَةَ أَيَّا٠4.

Ahmad ibn Muhammad from has narrated from ibn Mahbub from abu Ayyub from abu ‘Ubaydah who has said the following: “Abu Ja‘far (a.s.), has said, ‘In the state of ’Ttikaf one must not smell perfumes, enjoy sweet basil, argue, buy or sell.’ He (the Imam) said, ‘After three days of ’Ttikaf one has the choice to remain in ’Ttikaf for another three days or leave the Masjid.

If one remains for two days after the first three days, he must not leave the Masjid until after the second three days are complete.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/433))