It was narrated from Mus’ab bin Saad that his father said: “We were talking about something, and I had only recently left Jahiliyyah behind, so I swore by Al-Lat and Al-’Uzza. The Companions of the Messenger of Allah صلی اللہ علیہ وآلہ وسلم said to me: ‘What a bad thing you have said! Go to the Messenger of Allah صلی اللہ علیہ وآلہ وسلم and tell him, for we think that you have committed Kufr.’ So I went to him and told him, and he said to me: ‘Say: La ilaha illallah wal Ia Sharika lah (There is none worthy of worship except Aflah alone, with out partner) three times, and seek refuge with Allah from the Shaitan three times, and spit dryly to your left three times, and do not say that again.” (Sahih)