Calling witnesses to the taking back when he divorces and then takes her back

When Sayyiduna Ibn Umar (may Allah be pleased with them both) took back Safiyyah, he made people witnesses to it.

Al-Sha'bi (may Allah have mercy on him) was asked about a man who divorced his wife and then took her back, but did not know that he should make witnesses: what should he do? He said: He should make witnesses when he comes to know.

Amir (may Allah have mercy on him) was asked: If a man divorced his wife and then had intercourse with her before making witnesses to his taking her back, what is the ruling? He said: O Mughirah! What would you say about a man who does this with a woman of some people, while he has no relation to her!

Ibrahim (may Allah have mercy on him) was asked: If a man divorces his wife and makes witnesses to the divorce, but when he takes her back he does not make witnesses to taking her back, what is the ruling? He said: There is no sin in it, but he may face denial among people.

Al-Hasan (may Allah have mercy on him) was asked: If a man gives his wife one divorce, then has intercourse with her without making anyone a witness, what is the ruling? He said: The man's intercourse with the woman is itself a taking back; now let him make witnesses.

Ibrahim, al-Sha'bi and Tawus (may Allah have mercy on them) said: Intercourse is a taking back; now let him make witnesses.

Something similar is reported from al-Sha'bi.

Tawus (may Allah have mercy on him) (and the others) said: Intercourse is a taking back, so let him make witnesses.

Al-Dahhak (may Allah have mercy on him), in explaining the verse of the Holy Qur'an: "And take as witnesses two just men from among you" [al-Talaq: 2], said: People have been commanded to make witnesses at divorce and at taking back.

Al-Hakam (may Allah have mercy on him) was asked: If a man takes his wife back but does not make witnesses to it, what is the ruling? He said: He should make witnesses to his taking her back.

Ata (may Allah have mercy on him) said: Separation and taking back are done with witnesses.

Al-Hakam (may Allah have mercy on him) said: If a man divorced his wife (by an oath) and broke the oath, having had intercourse with her during her waiting period, and he came to know of that only after the waiting period had ended, then his intercourse with her is a taking back.

The same is reported from Ibrahim (may Allah have mercy on him).

Sayyiduna Imran bin Husayn (may Allah be pleased with him) was asked: If a man divorces his wife and does not make witnesses to it, and takes her back and does not make witnesses to that either, what is the ruling? He said: He divorced without following the Shari'ah way and took her back without following the Shari'ah way; he should make witnesses to what he did.