Regarding the Divine Decree (Qadr) Sunan Ibn Majah 81
Arabic hadith text
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ عَامِرِ بْنِ زُرَارَةَ، حَدَّثَنَا شَرِيكٌ، عَنْ مَنْصُورٍ، عَنْ رِبْعِيٍّ، عَنْ عَلِيٍّ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " لاَ يُؤْمِنُ عَبْدٌ حَتَّى يُؤْمِنَ بِأَرْبَعٍ بِاللَّهِ وَحْدَهُ لاَ شَرِيكَ لَهُ وَأَنِّي رَسُولُ اللَّهِ وَبِالْبَعْثِ بَعْدَ الْمَوْتِ وَالْقَدَرِ "
Translation
It was narrated that 'Ali said
"The Messenger of Allah (ﷺ) said: 'No slave truly believes until he believes in four things: in Allah alone with no partner; that I am the Messenger of Allah; in the resurrection after death; and in the Divine Decree (Qadar).'"