It is narrated from Abu Sa'id Khudri, may Allah be pleased with him, with the same chain, that the Prophet, peace and blessings be upon him, said: "Hell is surrounded by four walls, and the thickness of each wall is like the distance of forty years."
´Abu Sa'eed Al-Khudri narrated that about:` Kal Muhl, the Prophet (s.a.w) said: "Like boiling oil, such that whenever it is brought near him the skin of his face falls into it." And also with this chain, from the is Prophet SAW, that he said: "If a bucket of Ghassaq were poured out in the world, the people of the world would rot. (Da'if) And the meaning of his statement: "The Kithaf of each wall" is its thickness.
Hadith Referenceسنن ترمذي / كتاب صفة جهنم عن رسول الله صلى الله عليه وسلم / 2584
Hadith Gradingالألبانی:ضعيف، وهو مكرر الحديث (2707) // (475 - 2720) //
´Abu Sa'eed narrated regarding His (Allah's) statement:` Kal Muhl, the Prophet (s.a.w)said: 'Like boiling oil, such that when it is brought close to his face, the skin of his face will fall off into it."
Shaykh Dr. Abdur Rahman Freywai
Urdu Footnote: Note: (In the chain of narration, (Darraj Abu al-Samh) and (Rushdayn ibn Sa‘d) are weak.)
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 2581