It is reported with the same chain: Sayyidah Umm Salamah (may Allah be pleased with her) said: The Prophet (peace and blessings be upon him) said: "Husayn will be killed when his hair begins to turn white." Al-Tabarani said: The word qatir means white hair.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 15123
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (2808)»