Abu Musa al-Ash'ari narrates: The iqamah was called for the prayer. After that, Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) went to one of the pillars of the mosque and offered two rak'ahs; then he joined the prayer.
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2391