Mukhtasar Muslim

It is narrated from Abdullah, who was the freed slave of Asma bint Abi Bakr (may Allah be pleased with them both) and the maternal uncle of the son of Ata, that he said: Asma (may Allah be pleased with her) sent me to Abdullah ibn Umar (may Allah be pleased with them both) and told me to say: I have heard that you declare three things to be forbidden: one is a garment with silk embroidery, the second is an argwan (i.e., a bright red) saddlecloth, and the third is fasting for the entire month of Rajab. So Abdullah ibn Umar (may Allah be pleased with them both) said: Who says that fasting in the month of Rajab is forbidden? Whoever fasts continuously (Abdullah ibn Umar (may Allah be pleased with them both) used to fast continuously except on the two Eids and the days of Tashreeq, and his opinion was that perpetual fasting is not disliked). And as for what you mentioned about garments with silk embroidery, I heard Umar (may Allah be pleased with him) say: I heard the Messenger of Allah (peace and blessings be upon him) say: "Silk will be worn by the one who has no share in the Hereafter." So I feared that embroidered garments might also be silk. And as for the argwan saddlecloth, Abdullah's own saddlecloth is argwan. I conveyed all this to Lady Asma (may Allah be pleased with her), and she said: The cloak of the Messenger of Allah (peace and blessings be upon him) is present here. Then she brought out a Tayalisi Kisrawani cloak (which was attributed to the Persian king Kisra), which had silk on its collar and its hem was also of silk. Lady Asma (may Allah be pleased with her) said: This cloak remained with Umm al-Mu'mineen Aisha Siddiqa (may Allah be pleased with her) until she passed away. When she died, I took this cloak, and the Messenger of Allah (peace and blessings be upon him) used to wear it. Now we wash it and give its water to the sick for healing. (A silk border up to four fingers' width on the hem is permissible; more than that is forbidden.)