It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that Sayyiduna Abu Ayyub (may Allah be pleased with him) divorced his wife, so the Prophet (peace and blessings be upon him) said: "The divorce of Umm Ayyub was indeed a sin."
Ibn Sirin said: "Hub means sin."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12820