صحيح مسلم
Sahih Muslim
كتاب الإيمان
The Book of Faith
باب بَيَانِ أَنَّ الإِسْلاَمَ بَدَأَ غَرِيبًا وَسَيَعُودُ غَرِيبًا وَأَنَّهُ يَأْرِزُ بَيْنَ الْمَسْجِدَيْنِ:
Chapter: Clarifying that Islam started as something strange, and will revert to being something strange, and it will retreat between the two Masajid
3 hadith
Hadith 145
It is narrated on the authority of Abu Hurairah (RA) that the Messenger of Allah (ﷺ) said: Islam initiated as something strange, and it would revert to its (old position) of being strange. so good tidings for the stranger.
Hadith 146
It is narrated on the authority of Ibn 'Umar ('Abdullah bin 'Umar) that the Messenger of Allah (ﷺ) observed: Verily Islam started as something strange and it would again revert (to its old position) of being strange just as it started, and it would recede between the two mosques just as the serpent crawls back into its hole.
Hadith 147
It is narrated on the authority of Abu Hurairah (RA) that the Messenger of Allah (ﷺ) said: Verily the faith would recede to Madinah just as the serpent crawls back into its hole.