It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "After Hajj has been made obligatory, hasten to perform it, for none of you knows what needs or circumstances may arise for him later."
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2867
Hadith Gradingحکم دارالسلام:حديث حسن، وهذا إسناد ضعيف، إسماعيل بن خليفة العبسي سيئ الحفظ ، وقد توبع