Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: Sayyiduna Abu Ayyub (may Allah be pleased with him) divorced his wife, so the Prophet (peace and blessings be upon him) said to him: "O Abu Ayyub, divorcing Umm Ayyub is a sinful act." Ibn Sirin said: The word hub means sin.
Al-Tabarani recorded it; its chain contains Yahya bin Abd al-Hamid al-Himmani, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 15428