Mu'awiyah bin Qurrah (may Allah have mercy on him) narrates from his father (may Allah be pleased with him) that in the time of the Prophet (peace and blessings be upon him) we used to be prevented from "standing between the pillars in prayer."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5205