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 عَبْدٌ حَتَّى يُؤْمِنَ بِأَرْبَعٍ يَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللَّهُ وَحْدَهُ لَا شَرِيكَ لَهُ وَأَنِّي رَسُولُ اللَّهِ بَعَثَنِي بِالْحَقِّ وَأَنَّهُ مَبْعُوثٌ بَعْدَ الْمَوْتِ وَيُؤْمَنُ بِالْقَدَرِ كُلِّهِ