It is narrated about Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him) that he used to prostrate (pray) near the place where the mushaf was kept (in the mosque) and offer voluntary prayer there, and he would mention that the Messenger of Allah (peace and blessings be upon him) used to seek out that very spot (for prayer).
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6272