SUYUTI 2-2389b:
from Whb b. Kysān —
[Machine] Two festivals coincided during the time of Ibn al-Zubayr, so he delayed going out until the day was well advanced. Then he went out, delivered a long sermon, came down, and prayed two rak'ahs. He did not lead the people in the Friday prayer, which some people criticized him for. This was mentioned to Ibn Abbas, who said, "He followed the Sunnah." When this was conveyed to Ibn al-Zubayr, he said, "I saw Umar ibn al-Khattab do this when two festivals coincided during his time."
السيوطي ٢-٢٣٨٩b:
عن وهب بن كيسان —
اجتمع عيدان عل عهد ابن الزبير فأَخَّرَ الخروجَ حتى تَعَالَى النهارُ، ثم خرج فخطب فأطالَ، ثم نزل فصلى ركعتين، ولم يصلِّ للناس الجُمُعَةَ، فَعَابَ ذَلِكَ عليه نَاسٌ، فذُكِر ذلك لابن عباس، فقال: أَصَابَ السُّنَّة، فذكروا ذلك لابن الزبيرِ فقال: رَأَيْتُ عُمَرَ بْنَ الخَطَّابِ إِذَا اجْتَمَعَ عَلَى عَهْدِهِ عِيدَانِ صَنَعَ هَكَذا
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