٤ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ النَّوْفَلِيِّ عَنِ السَّكُونِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَم) قَالَ إِذَا أَطَاقَ الْغُلامُ صِيَامَ ثَلاثَةِ أَيَّامٍ مُتَتَابِعَةٍ فَقَدْ وَجَبَ عَلَيْهِ صِيَامُ شَهْرِ رَمَضَانَ. 
4. Ali ibn Ibrahim has narrated from his father from al-Nawfaliy from al-Sakuniy who has said the following: “Abu ‘Abd Allah , has said, ‘When a boy is able to fast for three days continuously it is obligatory on him to fast in the month of Ramadan.’” 