One of the sons of Anas bin Malik (may Allah be pleased with him) says that we were in Makkah with Anas bin Malik (may Allah be pleased with him). When the hair on his head would grow out, he would set out again to perform ‘Umrah.
Hadith Referenceمسند الإمام الشافعي / كتاب الحج / 778
Hadith Takhrijاسناده ضعيف لإبهام بعض ولدانس : اخرجه البيهقى 344/4 ۔ وفى المعرفة السنن والآثار له (2698)۔