Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "I am informed of the place where you (gather), and nothing prevents me from coming out to you except the concern that I might weary you. Indeed, the Messenger of Allah (peace and blessings be upon him) used to admonish us at intervals of days, disliking that we should become weary."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10392