Can a person or a group of people

A: Scholars differ regarding the permissibility of drawing a line in front of a person offering Salah (Prayer) (Part No. 7; Page No. 81) to act as a Sutrah for them, and whether this would be enough if the person does not find a staff. Sa`id ibn Jubayr, Al-Awza`y and Ahmad permitted it, while Malik, Al-Layth and Abu Hanifah disapproved it. Al-Shafi`y permitted it when he was in Iraq, but when he came to Egypt he said, "A person should not draw a line unless it is a Sunnah to follow. The reason for the differing opinions was their debate over the authenticity of the Hadith which was narrated by Imam Ahmad, Abu Dawud and Ibn Majah from Abu Hurayrah that the Prophet (peace be upon him) stated: When you offer Salah, you should place something in front of you. If you can find nothing, use your staff. If you have no staff, draw a line and there is no harm if anyone passes in front of you. Authenticated by Ahmad, Ibn Al-Madiny, Ibn Hibban and Al-Bayhaqy. Al-Hafizh ibn Hajar said in his book Bulugh Al-Maram, "Those who claim it is Mudtarib (a Hadith with disagreement over a transmitter or the text) are wrong; it is Hasan (a Hadith whose chain of narration contains a narrator with weak exactitude, but is free from eccentricity or blemish)." Sufyan ibn `Uyaynah, Al-Shafi`y, Al-Baghawy and others ranked this Hadith as Da`if (weak); they did not consider it is enough to draw a line as a Sutrah in Salah. The first opinion is stronger, according to the mentioned Hadith.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.