It is narrated from Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Do not rejoice at your brother's misfortune, lest Allah grant him well-being and afflict you."
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18347