It is narrated from Hazrat Muadh bin Jabal (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) did not give me any command regarding cattle less than thirty.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 22135
Hadith Gradingحکم دارالسلام:إسناده ضعيف، طاووس لم يدرك معاذا