Is it recommended to remain in the mosque from the time of the Fajr prayer until after sunrise?

Is it recommended to remain in the mosque from the time of the Fajr prayer until after sunrise? If it is, what are the virtues of doing so?

It is indeed a virtuous act to remain in the mosque after performing the Fajr prayer – engaging in the remembrance of Allah or in reading the Qur’ân – until the time of sunrise. The following has been narrated to that effect: Jâbir b. Samurah relates that after Allah’s Messenger (peace be upon him) offered the Fajr prayer, he used to remain seated in his place mosque a cross-legged position until the Sun had fully risen. [Sahîh Muslim]

The Prophet (peace be upon him) said: “Whoever offers the Morning prayer in congregation and remains seated, engaging in the remembrance of Allah until the Sun has risen, and then offers two units of prayer – he will have a reward equal to that of performing Hajj and `Umrah.” [Sunan al-Tirmidhî. Al-Albânî declares it to be an authentic hadîth in Sahîh al-Jâmi` (6346)]

Anas b. Mâlik relates that the Prophet (peace be upon him) said: “That I sit with people remembering Allah from the time of the Morning prayer up until sunrise is dearer to me than emancipating four of Ishmael’s progeny.” [Sunan Abî Dâwûd. Al-Albânî declares it to be a good (hasan) hadîth]

Mu`âdh relates that Allah’s Messenger (peace be upon him) said: “Whoever remains in his place after offering the Morning prayer until offering in the late morning two units of the Duhâ prayer, and does so without saying aught but a good word, his sins will be forgiven even if they are more plentiful than the foam of the sea.” [Musnad Ahmad. Ibn Hajar al-`Asqalânî regarded it as a good (hasan) hadîth] And Allah knows best. Islamtoday.com