Covering One’s Head With His Hand In Lieu of a Kippa

The Bet Yosef cites the ruling of the Terumat Ha'deshen (Rav Yisrael Isserlin, 1390-1460) that covering one's head with his hand does not suffice to permit praying and reciting Berachot, since the hand is part of the same body as the hand. The clear implication of this ruling, as the Bet Yosef notes, is that another person's hand is considered a legitimate head-covering to permit praying and reciting Berachot, as that hand is not part of the same body. The Bet Yosef rules accordingly in the Shulhan Aruch. There is a minority opinion – that of the Maharshal (Rav Shlomo Luria, Poland, 1510-1573) – that one's own hand can serve as a head-covering for this purpose, but the consensus does not follow this view. Although one's bare hand does not suffice as a head-covering, he may pull his sleeve over his hand, or cover his hand with some material, and then place his hand on his head, and this would qualify as a valid hair-covering. Therefore, if the wind blows someone's Kippa off his head and he needs to go retrieve it, he should pull his sleeve over his hand and then place his hand on his head so that he does not walk four Amot (cubits) with his head bare. A number of Poskim (including the Mishna Berura and Kaf Ha'haim) bring the view of the Elya Rabba (Rav Elya Spira of Prague, 1660-1712) that although covering one's head with his own hand does not suffice for prayer, it does suffice with respect to the requirement to avoid walking four Amot bareheaded. According to this opinion, one who needs to retrieve his Kippa may cover his head with his hand even without pulling down the sleeve. However, the Shulhan Aruch does not mention this distinction, and so it is best to act stringently and try in such a case to have one's sleeve or some other material in between his hand and his head. Summary: Placing one's hand on his bare head does not suffice as a hair-covering in lieu of a Kippa, unless there is something in between the hand and the head. Therefore, if someone does not have a Kippa and needs to pray or recite a Beracha, or he needs to go retrieve his Kippa which blew off his head, he should pull his sleeve over his hand and place his hand on his head. Somebody else's hand – even if the hand is bare – suffices as a head-covering.