Sabir was treated at a nearby hospital for wounds to the face and hands.
The explosion shattered many of the hotel's windows and showered shrapnel onto cars. The twisted remains of the attacker's vehicle lay in the street amid pools of blood. The concrete barriers that surround the building appeared to have prevented the assailant from getting closer.
In Diyala province Monday, a woman walked up to the house of a tribal leader and told his guards that she needed help. When she was brought to see Sheik Thair Karkhi, police said, she detonated explosives hidden under her robes, killing him, his 5-year-old niece, a cousin, 24, and a guard. Three other guards were injured in the attack, police said.
At least eight suicide attacks have been carried out by women since November, including the one in Diyala. U.S. officers speculate that female bombers are being used because they raise less suspicion.
Karkhi led a group of U.S.-backed Sunni Arab fighters that has turned against Al Qaeda in Iraq and its affiliates in Kanaan, a small town 12 miles east of Baqubah.
The U.S. military credits such security groups, which it has dubbed Sons of Iraq, for helping to reduce attacks by more than 60% nationwide since June. The groups are mostly Sunni.
In Muqdadiya, Diyala's second-largest city, police fired at a suspected suicide bomber as he walked up to their checkpoint. The injured attacker detonated the explosives strapped to his waist, killing two people and injuring 20 others, police said.
Special correspondent Asso Ahmed in Sulaymaniya and special correspondents in Baghdad contributed to this report.