Sahih Bukhari | Volume 8 | Hadith Number 402
Narrated by Abu Huraira
When the Prophet said, "Sami' al-lahu Liman hamidah (Allah heard him who sent his praises to Him)" in the last Rak'a of the 'Isha prayer, he used to invoke Allah, saying, "O Allah! Save 'Aiyash bin Abi Rabi'a; O Allah! Save Al-Walid bin Al-Walid; O Allah! Save the weak people among the believers; O Allah! Be hard on the Tribe of Mudar; O Allah! Inflict years of drought upon them like the years (of drought) of the Prophet Joseph."