وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم لَمْ يَعْتَمِرْ إِلاَّ ثَلاَثًا إِحْدَاهُنَّ فِي شَوَّالٍ وَاثْنَتَيْنِ فِي ذِي الْقَعْدَةِ ‏.‏

Yahya related to me from Malik from Hisham ibn Urwa, from hisfather, that the Messenger of Allah, may Allah bless him and grant himpeace, only did three umras, one of them in Shawwal, and two inDhu'l-Qada. Translation Not Available

Book Ref: Muwatta Imam Malik Book 20 Hadith 762
Web Ref:  Muwatta Imam Malik Book 20 Hadith 57

---