Is there a concise form of remembrance (dhikr) after rising from bowing (ruku') to avoid prolonging it for the congregants?

The Imam must adhere to the Sunnah in his actions, and he should not deviate from it to please anyone. There is no harm in occasionally lightening the prayer out of necessity, but the fundamental principle is adherence to the Sunnah. The Imam should inform the worshipers that they will be rewarded for their patience in following the Sunnah, and that abandoning facilitation for those who are not entitled to it will divide the Ummah. Imams are advised to read scholarly books about the description of the Prophet’s prayer, peace and blessings be upon him, such as "As-Salat" by Ibn al-Qayyim and "Zad al-Ma'ad."