2. Al-Baqara (The Cow)

Surah: 2   Aya: 133

133. Am kuntum shuhadaa ith hadara yaAAqooba almawtu ith qala libaneehi ma taAAbudoona min baAAdee qaloo naAAbudu ilahaka wa-ilaha aba-ika ibraheema wa-ismaAAeela wa-ishaqa ilahan wahidan wanahnu lahu muslimoona
  

  Translation

133. Or were you witnesses when death approached Ya'qûb (Jacob)? When he said unto his sons, "What will you worship after me?" They said, "We shall worship your Ilâh (God - Allâh), the Ilâh (God) of your fathers, Ibrâhim (Abraham), Ismâ'il (Ishmael), Ishâque (Isaac), One Ilâh (God), and to Him we submit (in Islâm)."