Dropping the Khutba for Two Caliphs and the Empty Pulpits

Al-Suyuti relates that when the caliph al-Mustakfi died in Qus, he had designated his son Ahmad as his successor, but the sultan paid no heed to this and gave the allegiance to Ibrahim, the cousin of al-Mustakfi, and titled him al-Wathiq. The two opinions then agreed to leave the sermon to both of them together, and to be content with the name of the sultan on the pulpits. ¹

Al-Suyuti says that the grandfather of Ibrahim, the ruler, had designated him and then changed his mind, and he explains this by Ibrahim's absorption in play and his association with the base. This is al-Suyuti's judgement, not the museum's. ¹

The chief judge Abu Umar ibn Jama'a tried to turn the sultan from holding the sermon in the name of al-Wathiq, and he did not. They agreed to leave the sermon for both of them, so the pulpits and niches were empty of the prayer for the caliphs. Al-Suyuti describes this in a literary phrase: as though the name of the caliphate had come down from the pulpits, as though it had never risen to their peak. ¹

When death came upon the sultan he regretted it, deposed Ibrahim and gave allegiance to the heir apparent Ahmad, and titled him al-Hakim, at the beginning of Muharram 741 AH. ¹

What is not covered here: the position of other sources on the affair. This needs an additional source.