[Machine] The Prophet of Allah ﷺ wrote a letter to the people of Yemen containing information about religious obligations, practices, and charity. He sent the letter with Amr ibn Hazm and in it, he mentioned that performing Umrah is the lesser pilgrimage compared to Hajj.
أَنَّ رَسُولَ اللهِ ﷺ كَتَبَ إِلَى أَهَلِ الْيَمَنِ بِكِتَابٍ فِيهِ الْفَرَائِضُ وَالسُّنَنُ وَالدِّيَاتُ فَبَعَثَ بِهِ مَعَ عَمْرِو بْنِ حَزْمٍ وَفِيهِ إِنَّ الْعُمْرَةَ الْحَجُّ الْأَصْغَرُ