(16) باب الدَّلِيلِ عَلَى زِيَادَةِ الإِيمَانِ وَنُقْصَانِهِ
Ibn 'Abbas said:
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."
Reference: Sunan Abi Dawud 4680
In-book reference: Book 42, Hadith 85
English translation: Book 41, Hadith 4663