Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) passed by Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) while he was sitting by the grave of the Messenger of Allah (peace and blessings be upon him), weeping. He asked: "O Mu'adh! What has made you weep? Perhaps you remembered your brother (the Messenger of Allah (peace and blessings be upon him))? If you have remembered him, he is indeed worthy of that." He replied: "No, rather what made me weep is something I heard from him in this very gathering of mine, or in this very place of mine. The Messenger of Allah (peace and blessings be upon him) was saying: 'Even a little showing off is shirk (associating partners with Allah). Indeed, Allah Almighty loves the pious, the hidden and the pure, those who, if they are absent, are not missed, and if they are present, are not recognised. Their hearts are lamps of guidance; they come out of every dark, black trial.'"
No one narrated this hadith from Zubayd (may Allah have mercy on him) except al-Fayyad bin Ghazwan (may Allah have mercy on him), and from al-Fayyad (may Allah have mercy on him) only Talhah bin Sulayman (may Allah have mercy on him); Ishaq bin Sulayman (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الميم / 7112
Hadith Takhrij«أخرجه الحاكم فى «المستدرك» برقم: 4، 5218، 8028، وابن ماجه فى «سننه» برقم: 3989، والطحاوي فى «شرح مشكل الآثار» برقم: 1798، 1799، والطبراني فى «الكبير» برقم: 53، 321، 322، والطبراني فى «الصغير» برقم: 892، والطبراني فى «الأوسط» برقم: 4950»