حَدَّثَنَا عِمْرَانُ بْنُ مُوسَى اللَّيْثِيُّ، حَدَّثَنَا عَبْدُ الْوَارِثِ بْنُ سَعِيدٍ، عَنْ عَبْدِ الْعَزِيزِ بْنِ صُهَيْبٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ دَخَلَ الْمَسْجِدَ فَرَأَى حَبْلاً مَمْدُودًا بَيْنَ سَارِيَتَيْنِ فَقَالَ ‏"‏ مَا هَذَا الْحَبْلُ ‏"‏ ‏.‏ قَالُوا لِزَيْنَبَ تُصَلِّي فِيهِ فَإِذَا فَتَرَتْ تَعَلَّقَتْ بِهِ ‏.‏ فَقَالَ ‏"‏ حُلُّوهُ حُلُّوهُ لِيُصَلِّ أَحَدُكُمْ نَشَاطَهُ فَإِذَا فَتَرَ فَلْيَقْعُدْ ‏"‏ ‏.‏

It wasnarrated from Anas bin Malik that the Messenger of Allah (PBUH)entered the mosque and saw a rope tied between two pillars. He said,“What is this rope?” They said: “It belongs to Zainab. Sheprays hereand when she gets tired she holds on to it.” He said:“Untie it, untieit; let any one of you pray when he has energy, ifhe gets tired lethim sit down.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 1371
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 1371