139. hadíth
وَ رَوَى عَنْهُ إِسْمَاعِيلُ بْنُ مُسْلِمٍ أَنَّهُ قَالَ: «إِذَا أَطَاقَ اَلْغُلاَمُ صَوْمَ ثَلاَثَةِ أَيَّامٍ مُتَتَابِعَةٍ فَقَدْ وَجَبَ عَلَيْهِ صِيَامُ شَهْرِ رَمَضَانَ ».
It is narrated from Imam Jafar ibn Muhammad Al-Sadiq (a.s) through Isma'il ibn Muslim that He said: "If a boy is able to fast for three consecutive days, fasting the Month of Ramadan becomes obligatory upon him."