Sunan an-Nasa'i, Book 48, Hadith 217 (In-Book) ⓘ
It was narrated that Anas said: "The Messenger of Allah [SAW] forbade men to use saffron."
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، عَنْ إِسْمَاعِيلَ، عَنْ عَبْدِ الْعَزِيزِ، عَنْ أَنَسٍ، قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يَتَزَعْفَرَ الرَّجُلُ .
also referenced under: Hadith 5256 (Reference) & Volume 6, Book 48, Hadith 5258 (DarusSalam)