Silsilah as-Sahihah 368 — Ruling and requirements of teaching Shariah

It is narrated from Sayyiduna Abu Musa (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) sent him and Sayyiduna Mu'adh (may Allah be pleased with him) towards Yemen and said: "Make things easy and do not make them difficult, give glad tidings and do not create aversion, and be in agreement with each other and do not differ."