Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that the Prophet (peace and blessings be upon him) disliked a garment of pure silk; "but if there is silk embroidery, or the warp of the garment is silk, there is no harm in it." These are the words of Yahya's hadith; in Amr's narration it has "forbade" in place of "disliked", and he said: "Silk stripes, and the warp of the garment being silk, there is no harm in it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6086