One who vows to put a ring through his nose: what is its expiation?

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) was asked about a person who vows that he will pierce his nose (like a camel's nose-rope). He said: He should expiate his oath.

Abu Jamrah said: A man from Banu Sulaym vowed that he would pierce his nose (like a nose-rope). Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: Vows are of two kinds: whatever is for Allah is to be fulfilled, and whatever is for Satan is to be expiated. Release your halter and expiate your oath.

Uthman bin Ghiyath said: I asked Jabir bin Zayd about a man who vowed that he would put a ring of gold in his nose (by piercing it). He said: As long as it remains on him, he will remain a sinner; so order him to expiate his oath.

Al-Hasan was asked about a person who vowed that he would pierce his nose (to put a halter or nose-rope in it) and perform Hajj on foot. He said: The Prophet (peace and blessings be upon him) forbade mutilation. Remove this from yourself, perform Hajj riding, and sacrifice a camel.

Tawus said: In Islam there is no nose-rope, no hair-ring and no wailing. (Khizamah is a ring of hair placed in the hole of a camel's nose, to which its halter is tied.)