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.” (Using translation from Abū Dāʾūd 4680)
لَمَّا وُجِّهَ النَّبِيُّ ﷺ إِلَى الْكَعْبَةِ قَالُوا يَا رَسُولَ اللهِ فَكَيْفَ بِمَنْ مَاتَ مِنْ إِخْوَانِنَا قَبْلَ ذَلِكَ الَّذِينَ مَاتُوا وَهُمْ يُصَلُّونَ إِلَى بَيْتِ الْمَقْدِسِ؟ فَأَنْزَلَ اللهُ ﷻ {وَمَا كَانَ اللهُ لِيُضِيعَإِيمَانَكُمْ} [البقرة 143]