It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) lifted the curtain while the people were standing in rows behind Sayyiduna Abu Bakr (may Allah be pleased with him), and said: Of the glad tidings of prophethood, now only the righteous dream remains, which a Muslim sees himself or is seen for him. Be aware! I have been forbidden to recite the Qur'an while in the state of bowing (ruku') or prostration (sujud). So, in ruku', glorify the greatness of your Lord, and in sujud, strive in supplication, for supplication is more likely to be accepted then.