Omar Ibn Al-Qatb and the Prophet SallAllahu Alaihi Wasallam

Omar ibn al-Qatb then proceeded to Al-Aqam's house the sword is still in his hand because he hasn't let go of it. Omar said Yara Surah Allah I came to accept Islam believe in Allah and testify in the truth here. The Prophet SallAllahu Alaihi Wasallam held on to his collar and dragged him closer to himself  and said Yabnah Khattab what are you doing here why did you come here?