He said that Abdullah bin Umar and Abdullah bin Amr bin As met at Marwa and spoke together. Then Abdullah bin Amr went on his way, while Abdullah bin Umar remained behind, weeping.A man asked him, "What makes you weep, Abu Abdul-Rahman?"He replied, "This man," meaning Abdullah bin Amr, "claims that he heard the Messenger of Allah ﷺ say, 'Whoever has in his heart the weight of a mustard seed of pride, Allah will cast him on his face into the Fire.'"
حدثنا مروان بن شجاع أبو عمرو الجزري حدثني إبراهيم بن أبي عبلة العقيلي من أهل بيت المقدس
قال التقى عبد الله بن عمر وعبد الله بن عمرو بن العاص على المروة فتحدثا ثم مضى عبد الله بن عمرو وبقي عبد الله بن عمر يبكي فقال له رجل ما يبكيك يا أبا عبد الرحمن قال هذا يعني عبد الله بن عمرو زعم أنه سمع رسول الله ﷺ يقول من كان في قلبه مثقال حبة من خردل من كبر أكبه الله على وجهه في النار
Its chain of transmission is sahih. Ibrahim bin Abu Abla Aqeeli Shami is trustworthy, one of the teachers of Malik and Layth and others. He was deemed trustworthy by Ibn Main, Ibn Madini, Nasai, and others, and both Bukhari and Muslim included his narrations in their books. He belongs to the younger generation of the Successors and heard from Ibn Umar, as Bukhari affirmed decisively in Al-Kabir, 1/1/310-311. He has a biographical entry in the book Al-Jam Bayna Rijal Sahihayn, page 16, where it is attributed that he is Aqeeli, as here, and it is also stated there that he died in the year 152 in Palestine.This hadith is a repetition of number 6526 with similar wording, from another route, and we have already noted this there.Regarding his statement, "may Allah cast him down upon his face," this is how it appears in all three original manuscripts, with the hamza, as a quadriliteral verb. In the margin of manuscript M, the following note appears, "This is how it reads in the copies, akabbahu, and in another copy, kabbahu Allah, which is the well known form." This is a reference to what is found in the lexicons, that the triliteral form of this verb is transitive, while the quadriliteral form is intransitive. Ibn Manzur says in Lisan, "kabbahu li-wajhihi fa-inkabba, meaning he threw him down, and akabba huwa ala wajhihi, meaning he fell down himself." This is one of the rare cases where it is said akbabtu for myself and kababtu for someone else. It is said, "kabba Allahu adüwwa al-Muslimin," meaning Allah cast down the enemy of the Muslims, and akabba is not said in this sense. This is the well known usage, but the quadriliteral form of it is also established as transitive, and the triliteral form is likewise established as intransitive. For in Al-Qamus it says, "kabba, he overturned it and threw it down, like akabbahu and kabbabahu, fa-akabba," meaning it is transitive.