To offer As-Salat (the prayer) facing a pillar

وَقَالَ عُمَرُ الْمُصَلُّونَ أَحَقُّ بِالسَّوَارِي مِنَ الْمُتَحَدِّثِينَ إِلَيْهَا. وَرَأَى عُمَرُ رَجُلاً يُصَلِّي بَيْنَ أُسْطُوَانَتَيْنِ فَأَدْنَاهُ إِلَى سَارِيَةٍ فَقَالَ صَلِّ إِلَيْهَا.‘Umar said, “The people offering As-Salat (the prayer) have got more right to pray behind the pillars of the mosque than those who are talking.” When ‘Umar saw a person Salat (prayer) between two pillars, he brought him close to a pillar and told him to pray behind it.