Al-Kāfi

Hadith 1399
wilayahtwelve-imams
12ـ وَبِهَذَا الاسْنَادِ قَالَ قَالَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) لاصْحَابِهِ آمِنُوا بِلَيْلَةِ الْقَدْرِ إِنَّهَا تَكُونُ لِعَلِيِّ بْنِ أَبِي طَالِبٍ وَلِوُلْدِهِ الاحَدَ عَشَرَ مِنْ بَعْدِي.
12. Through same chain of narrators the following is narrated. “the Messenger of Allah once said to his companions, ‘You must believ in the Layla al-Qadr (night of destiny). It is Ali ibn abu Talib (a.s.) and his eleven descendants after me.”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī