That when they were present with the Messenger of Allah in Al-Madinah, he sent the Hadi, and whoever wanted to enter Ihram did so, and whoever did not want to, did not. (Using translation from Nasāʾī 2792)
عَنْ جَابِرٍ أَنَّهُمْ كَانُوا إِذَا حَضَرُوا مَعَ رَسُولِ اللهِ ﷺ بِالْمَدِينَةِ فَبَعَثَ بِالْهَدْيِ فَمَنْ شَاءَ مِنَّا أَحْرَمَ وَمَنْ شَاءَ تَرَكَ