Sayyiduna Abu al-Darda' (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Take concubines, for they have blessed wombs."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator, Amr bin Muhammad al-Uqayli, who is matruk (abandoned).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب النكاح / 7344