ʿNo one (truly) believes until he believes in four things; until he believes that there is no god but Allah and that I am the Messenger of Allah Who sent me with the truth, and until he believes in the resurrection after death, and until he believes in the divine will and decree.” (Using translation from Aḥmad 758)
عَنِ النَّبِيِّ ﷺ قَالَ «لَا يُؤْمِنُ الْعَبْدُ حَتَّى يُؤْمِنَ بِأَرْبَعٍ حَتَّى يَشْهَدَ أَنْ لَا إِلَهَ إِلَّا اللَّهُ وَأَنِّي رَسُولُ اللَّهِ بَعَثَنِي بِالْحَقِّ وَيُؤْمَنُ بِالْبَعْثِ بَعْدَ الْمَوْتِ وَيُؤْمَنُ بِالْقَدَرِ»