Certainty in the Afterlife (Yaqīn)

وَٱلَّذِينَ يُؤْمِنُونَ بِمَآ أُنزِلَ إِلَيْكَ وَمَآ أُنزِلَ مِن قَبْلِكَ وَبِٱلْـَٔاخِرَةِ هُمْ يُوقِنُونَ

And who believe in what has been revealed to you, [O Muḥammad], and what was revealed before you, and of the Hereafter they are certain [in faith].