صَحِيحُ مُسْلِمٍ
Sahih Muslim 1397 b
The Book of Pilgrimage
The virtue of the Three Masajid
وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ الأَعْلَى، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، بِهَذَا الإِسْنَادِ غَيْرَ أَنَّهُ قَالَ تُشَدُّ الرِّحَالُ إِلَى ثَلاَثَةِ مَسَاجِدَ .
This hadith has been narrated on the authority of Zuhri (but with this change of words) that he (Allah's Messenger (ﷺ) ) said: " Undertake journey to three mosques."
Sahih Muslim, 1397 bSahihصحيح