Sayyiduna ‘Abdullah ibn ‘Umar (radiyallahu ‘anhuma) and other Sahabah (radiyallahu ‘anhum) reported that Rasulullah (sallallahu ‘alayhi wa sallam) said:
‘Whoever offers four rak’ahs after ‘Isha before leaving the Masjid, will receive the reward of [these rak’ahs being offered] on Laylatul Qadr.’
(Musnad Imam Abu Hanifah, Hadith: 178-179, Sunan Sa’id ibn Mansur, Al-Mu’jamul Awsat, Hadith: 5239 and 6332, Al-Mu’jamul Kabir, Hadith: 12240 and 13800 and As-Sunanul Kubra of Bayhaqi, vol.2 pg.477. Also see Targhib, vol.1 pg.401)
In addition to this, several Sahabah (radiyallahu ‘anhum) have also said the same:
“Whoever offers four rak’ahs (nafl) after ‘Isha, will get the reward of offering these rak’ahs on Laylatul Qadr”
(Musannaf Ibn Abi Shaybah, Hadith: 7351-7357 and As-Sunanul Kubra of Bayhaqi, vol.2 pg.477)
Fortunate are those who can secure such a privilege every night!
Shaykhul Hadith, Moulana Fadlur Rahman ‘Azami (hafizahullah) would mention the following Urdu poem in his Hadith lesson:
قدر دانوں کیلئے ہر رات شب قدر ہے
For those who have real value, every night can be Laylatul Qadr!
Note: One may merely add two rak’ahs to the usual two sunnah muakkadah after ‘Isha, and make the intention of practicing on this Hadith.