Musannaf Ibn Abi Shaybah

Hazrat Abdullah bin Amr (may Allah be pleased with him) says that the reward for offering four rak'ahs after 'Isha is equal to offering four rak'ahs on the Night of Qadr.

Hazrat Aisha (may Allah be pleased with her) narrates that the reward for offering four rak'ahs after 'Isha is equal to offering four rak'ahs on the Night of Qadr.

Hazrat Abdullah says that whoever offers four rak‘ahs with one salam after ‘Isha, their reward is equal to offering four rak‘ahs on the Night of Qadr.

Hazrat Ka'b bin Mata' says that whoever offers four rak'ahs after 'Isha, performing the bowing and prostration properly, their reward is equal to offering four rak'ahs on the Night of Qadr.

It is narrated similarly through another chain.

Hazrat Mujahid says that the reward for offering four rak‘ahs after ‘Isha is equal to offering four rak‘ahs on the Night of Qadr.

Hazrat Abdur Rahman bin Aswad says that the reward for offering four rak‘ahs after ‘Isha is equal to offering four rak‘ahs on the Night of Qadr.