Amrah narrates from Sayyidah Aishah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) prayed in his room, and the people followed him (peace and blessings be upon him) from outside the room. They prayed along with his (peace and blessings be upon him) prayer.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5240