ENOfficial
Hisham ibn 'Urwa reported that Ibn az-Zubayr was in Makka and the Companions of the Prophet, may Allah bless him and grant him peace, were carrying birds in cages.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عَارِمٌ، قَالَ: حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ قَالَ: كَانَ ابْنُ الزُّبَيْرِ بِمَكَّةَ وَأَصْحَابُ النَّبِيِّ صلى الله عليه وسلم يَحْمِلُونَ الطَّيْرَ فِي الأَقْفَاصِ.
sunnah.com