Does moving about inside the mosque, or leaving to perform ablution and returning, invalidate the reward of sitting in the prayer area after Fajr prayer, as mentioned in the Hadith?

The preponderant opinion is that moving within the mosque to take a mushaf (Qur'an), change one's place, or leave for purification and then return, does not prevent one from receiving the reward mentioned in the hadith for the worshipper sitting in his prayer area. This is because "his prayer area" refers to the entire mosque as long as he is within it, and leaving for an urgent need like ablution does not affect the reward.