My father said, "I saw Messenger of Allah ﷺ at a place called Al-Abtah. Bilal came and informed him about the prayer and then came out with a short spear (or stick) and planted it in front of Messenger of Allah ﷺ at Al-Abtah and pronounced the Iqama."
رَأَيْتُ رَسُولَ اللَّهِ ﷺ بِالأَبْطَحِ فَجَاءَهُ بِلاَلٌ فَآذَنَهُ بِالصَّلاَةِ ثُمَّ خَرَجَ بِلاَلٌ بِالْعَنَزَةِ حَتَّى رَكَزَهَا بَيْنَ يَدَىْ رَسُولِ اللَّهِ ﷺ بِالأَبْطَحِ وَأَقَامَ الصَّلاَةَ