It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that he heard the Messenger of Allah (peace and blessings be upon him) instructing these words for times of fright: 'A'udhu bi-kalimati Allahi al-tammati min ghadabihi wa min 'iqabihi, wa min sharri 'ibadihi, wa min hamazati al-shayatini wa an yahdurun' (I seek refuge in the perfect words of Allah from His anger and from His punishment, from the evil of His servants, from the whisperings of the devils, and from their coming to me). The narrator said: Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) used to teach these words to those of his children who had reached understanding, so that they would recite them when going to sleep, and for the children who had not yet reached the age (of understanding), he would write these words down and hang them around their necks. This hadith has a sahih (authentic) chain, and it is connected (muttasil) at the point of disagreement.

It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When any of you goes to his bed, an angel and a devil rush towards him. The devil says: Begin (your affair) with evil. And the angel says: Begin with good. So if he remembers Allah, the devil goes away and the angel spends the night guarding him. And when he wakes up, an angel and a devil again rush towards him. The devil says: Begin with evil. And the angel says: Begin with good. So if he says: 'Alhamdu lillahi alladhi radda ilayya nafsi ba'da mawtiha wa lam yumitha fi nawmiha, alhamdu lillahi alladhi yumsiku al-sama'a an taqa'a 'ala al-ardi illa bi-idhnihi, inna Allaha bil-nasi la-Ra'ufun Rahim, alhamdu lillahi alladhi yuhyi al-mawta wa huwa 'ala kulli shay'in qadir' (All praise is for Allah who returned my soul to me after its death (sleep) and did not cause it to die in its sleep; all praise is for Allah who holds back the heaven from falling upon the earth, except by His permission (can that happen); indeed, 'Allah is Most Kind and Most Merciful to people' [Surah al-Hajj: 65] ; all praise is for Allah who gives life to the dead, and He has power over all things), then if he falls from his mount in that state and dies, he dies a martyr, and if he stands up and prays, he prays a prayer full of virtues." This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.