It is narrated from Hazrat Amr bin Khariyah (may Allah be pleased with him) that (in the plain of Mina) the Prophet (peace and blessings be upon him) delivered a sermon while sitting on his camel (which was chewing cud and its saliva was flowing between my two shoulders) and said: "Be aware, charity is not lawful for me and my family." Then he took a hair from the shoulder of his camel and said: "Not even equal to this."
Hadith Referenceمسند احمد / مسند الشاميين / 17663
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف لضعف ليث وشهر بن حوشب
May Allah’s curse be upon the one who ascribes himself to anyone other than his father, or who seeks allegiance with anyone other than his master. The child belongs to the (owner of) the bed, and for the adulterer is the stone. Allah Almighty has given every rightful person his due right, therefore, there can be no bequest in favor of an heir.