601. hadíth
وَقَالَ اَلصَّادِقُ عَلَيْهِ اَلسَّلاَمُ: فِي قَوْلِ اَللَّهِ عَزَّ وَ جَلَّ: « إِنَّ اَلصَّلاٰةَ كٰانَتْ عَلَى اَلْمُؤْمِنِينَ كِتٰاباً مَوْقُوتاً » قَالَ «مَفْرُوضاً.
Imam Jafar ibn Muhammad Al-Sadiq (a.s) said regarding the words of Allah (swt),: "Indeed, prayer has been decreed upon the believers a timed decree" (Surah An-Nisa 4:103). Imam (a.s) said: "It means obligatory (prescribed)”.