It is reported about Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) that once he met Sayyiduna Umar bin al-Khattab (may Allah be pleased with him). Sayyiduna Umar (may Allah be pleased with him) took his hand and squeezed it; Sayyiduna Umar (may Allah be pleased with him) was a man of strong build. Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) said: Let go of my hand, O you who are a lock against tribulation. Sayyiduna Umar (may Allah be pleased with him) asked: What is meant by being a lock against tribulation? Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) explained: One day you were coming to the Messenger of Allah (peace and blessings be upon him); the Messenger of Allah (peace and blessings be upon him) was seated, and people were gathered around him (peace and blessings be upon him), and you sat down at the back. At that time the Prophet (peace and blessings be upon him) said: As long as this man remains among you, tribulation will not reach you.
Imam al-Tabarani recorded it in al-Mu'jam al-Awsat. Its narrators are the narrators of the Sahih, except al-Sari bin Yahya, who is thiqah and thabt (trustworthy and firm); however, there is also the point that, in my view, al-Hasan al-Basri did not hear from Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 14452
Hadith Gradingمحدثین:إسنادہ منقطع
Hadith Takhrij«اخرجه الطبراني فى المعجم الاوسط (1966) ، أخرجه المعجم الأوسط للطبراني برقم: 1966»