Reward for Sitting after Fajr

Assalamu Alaykum

From Anas bin Malik, may Allah be pleased with him, who said: "The Messenger of Allah, sallallahu `alayhi wa sallam, said: 'Whoever prays the morning prayer in congregation then sits remembering Allah until the sun rises, then prays two units of prayer has the reward like that of Hajj and `Umrah.'" He said, "Allah's Messenger, sallallahu `alayhi wa sallam, said: 'Complete, complete, complete (i.e. reward).' [Tirmidhi]

One of the Sheikhs was speaking about this hadith and he was saying basically if we pray Fajr in the masjid and then we just do dhikr or read some Quran sitting in our place of fajr until Duha-time (about twenty minutes post-fajr) and then we pray 2 rakat of Duha (some people call this prayer Ishraq also), then insh'Allah we will have the reward of a full Hajj AND Umrah (though our obligation to perform Hajj is not lifted). Subhan'Allah, we can achieve soooo much reward soooo easily everyday. This is by the bounty that Allah bestows upon us. And Allah is the Owner of great bounty.

insha'Allah everyone is doing well.
wa assalamu alaykum,
bilal