From Sahih Muslim (Hadith 3669):
Ibn Tawus narrated on the authority of his father that Ibn 'Umar (Allah be pleased with them) was asked about the person who divorced his wife in the state of menses, whereupon he said:Do you know 'Abdullah b. Umar? He said: Yes. He said: It was he who divorced his wife jn the state of menses and 'Umar went to Allah's Apostle (ﷺ) and gave him this information. and he commanded him that he should take her back; and he (Abu Tawus) said: I did not hear any addition to this (hadith) from my father
Reference: Muslim 3669