Sayyiduna Abu Hurairah (may Allah be pleased with him) reports that I heard Sayyiduna Abu al-Qasim (peace and blessings be upon him) say: "Whoever does not thank people, does not thank Allah either."
Hadith Referenceمسند الشهاب / 829
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«إسناده صحيح ، وأخرجه أبو داود : 4811 ، ترمذي : 1954 ، الادب المفرد : 218»