It appears that in the early days of Christianity, most of the apostles remained in Jerusalem, which continued to be the location of the governing body.
فَبَعْدَ مَوْتِ يَسُوعَ ،‏ بَقِيَ مُعْظَمُ ٱلرُّسُلِ فِي أُورُشَلِيمَ ،‏ مَقَرِّ ٱلْهَيْئَةِ ٱلْحَاكِمَةِ .‏