when the Prophet (May peace be upon him) turned towards the Ka’bah (in prayer), the people asked : Messenger of Allah (May peace be upon him)! what will happen with those who died while they prayed with their faces towards Jerusalem ? Allah the Exalted, then revealed : “And never would Allah make your faith of no effect.”
لَمَّا تَوَجَّهَ النَّبِيُّ ﷺ إِلَى الْكَعْبَةِ قَالُوا يَا رَسُولَ اللَّهِ فَكَيْفَ الَّذِينَ مَاتُوا وَهُمْ يُصَلُّونَ إِلَى بَيْتِ الْمَقْدِسِ فَأَنْزَلَ اللَّهُ تَعَالَى { وَمَا كَانَ اللَّهُ لِيُضِيعَ إِيمَانَكُمْ }