Umar bin Khattab saw a silk garment being sold at the door of the mosque, so he said, "Messenger of Allah, if only you would buy this garment to wear on Fridays and when delegations come to visit you."The Messenger of Allah ﷺ replied, "This is worn only by one who has no share in the Hereafter."Later, some such garments were brought to the Messenger of Allah ﷺ, and he gave one of them to Umar bin Khattab.Umar said, "Messenger of Allah, are you giving this to me to wear, when you said about the garment of Utarid what you said?"The Messenger of Allah ﷺ answered, "I did not give it to you to wear it yourself."So Umar gave it to a polytheist brother of his in Mecca.
أن عمر بن الخطاب رأى حلة سيراء تباع عند باب المسجد، فقال: يا رسول الله، لو اشتريت هذه الحلة، فلبستها يوم الجمعة، وللوفد إذا قدموا عليك، فقال رسول الله ﷺ: إنما يلبس هذه من لا خلاق له في الآخرة، ثم جاء رسول الله ﷺ منها حلل، فأعطى عمر بن الخطاب منها حلة، فقال عمر: يا رسول الله، أكسوتنيها، وقد قلت في حلة عطارد ما قلت؟ فقال رسول الله ﷺ: لم أكسكها لتلبسها، فكساها عمر أخا له مشركا بمكة.
Malik narrated it in the Book of Clothing (18) from Nafi, from Abdullah bin Umar, as mentioned. Bukhari narrated it in the Book of Friday (886), and Muslim in the Book of Clothing and Adornment (2068), both through Malik with this same chain. Bukhari also narrated it in the Book of Clothing (5841) through Juwayriyah, from Nafi with similar wording, which includes, "The Prophet ﷺ later sent Umar a silk siraa robe."His saying, "a siraa robe" siraa, with a kasrah on the sin, a fathah on the ya, and a long vowel, refers to a type of striped cloth mixed with silk threads like cords. "A siraa robe" is transmitted this way as a descriptive phrase, though it has also been said that it should be read as a possessive construction, "a robe of siraa." Those who hold this view cite Sibawayh's statement that the pattern fa'laa never occurs as an adjective, but only as a noun. Siraa has been explained as pure silk, meaning the phrase signifies "a robe of silk." See An-Nihayah.