"Whoever performs wudu and performs wudu, well, then prays ('Abdur-Rahman said: and prays Isha), then prays after that four Rakahs and does them well (Sawwar said: and understands what he is reciting (Sawwar said: and recites therein), they will be equivalent to (praying) Lailat Al-Qadr for him". (Hasan Maqtu)
Sunan an-Nasa'i Book 46, Hadith 84
← Previous Hadith "The least for which the hand of a thief is to be cut off is the price of a shield. And the price of a shield in those days was ten Dirhams." (Hasan) Abu 'Abdur-Rahman (An-Nasai) said: Ayman, the one whose narrations preceded, I do not think he was a Companion, and another Hadith has been related from him which proves what we have said:

Sunan an-Nasa'i Book 46, Hadith 83 Next Hadith → "Whoever performs Wudu and performs Wudu well, then attends Isha prayer in congregation, then prays four similar Rakahs after that, reciting therein and bowing and prostrating perfectly, that will bring him a reward like that of (praying) Lailat Al-Qadar." (Hasan Maqtu)

Sunan an-Nasa'i Book 46, Hadith 85