Musannaf Ibn Abi Shaybah 39186 — The imam speaking during the sermon

Hisham bin Ishaq bin Abdullah bin Kinanah narrates from his father, who said: One of the governors sent me to Sayyiduna Ibn Abbas (may Allah be pleased with them both) to ask about the rain prayer (istisqa). Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: "What has stopped the governor from asking me? The Prophet (peace and blessings be upon him) went out in a state of humility, lowliness, submissiveness, supplication and tarassul (walking slowly). He prayed two rak'ahs like the Eid prayer, and he did not deliver a sermon like this sermon of yours."