It is narrated from Abu Sha’tha’ (may Allah be pleased with him) that he saw Ibn Abbas (may Allah be pleased with him) returning anyone who passed the miqat without entering into ihram.
Hadith Referenceمسند الإمام الشافعي / كتاب الحج / 771
Hadith Takhrijاسناده صحیح اخرجه البيهقى 29/5 ، 30 ۔ وفى المعرفة السنن والآثار له (2764)۔