حَدَّثَنَا حُمَيْدُ بْنُ مَسْعَدَةَ، حَدَّثَنَا جَعْفَرُ بْنُ سُلَيْمَانَ، عَنِ الْمُعَلَّى بْنِ زِيَادٍ، عَنْ مُعَاوِيَةَ بْنِ قُرَّةَ، عَنْ مَعْقِلِ بْنِ يَسَارٍ، قَالَ قَالَ رَسُولُ ـ صلى الله عليه وسلم ـ الْعِبَادَةُ فِي الْهَرْجِ كَهِجْرَةٍ إِلَىَّ "
It was narrated from Ma'qil bin Yasar that the Messenger of Allah (ﷺ) said:
"Worship during the time of bloodshed is like emigrating to me."
Reference: Sunan Ibn Majah 3985
In-book : Book 36, Hadith 60
English translation : Vol. 5, Book 36, Hadith 3985