It is narrated from al-Qasim (may Allah have mercy on him) that he said: "The first person in Makkah, in the blessed era of the Messenger of Allah (peace and blessings be upon him), who openly spread the Noble Qur'an and recited it aloud was Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him)."
Imam Ibn Abi Umar recorded this report in his Musnad; all the narrators of its chain are thiqat (trustworthy), but since al-Qasim did not hear from Sayyiduna Ibn Mas'ud (may Allah be pleased with him), it is mursal in its chain; however, other reliable historical and Sirah reports support this incident.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب المناقب / 4062
Hadith Gradingمحدثین:إسناده حسن، مرسل
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده حسن مرسل » «أخرجه مصنف ابن أبي شيبة برقم: 36933، وأخرجه المعجم الكبير للطبراني برقم: 8961»