“When the fifth from my offspring disappears, then, I adjure you by Allah to watch for your religion so that no one would take it away from you. Without doubt, there shall be an occultation for the holder of this matter, until such time that (most) people who believe in his Imāmat would leave their belief. Verily this (occultation) is but a test by Allah, the Glorious, for his creation.”
Majlisi, Bihārul Anwār, vol.52, p. 113 ; Muhammad Kulayni, Usūl al-Kāfī, vol.1, p. 336 ; al-Tūsī, Kitāb al-Ghayba, p. 337.
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Musa al-Kadhim 15
Seventh of the Twelve Imams and regarded by Sunnis as a ren… 745–799Related quotes

Riyadh-as-Saliheen by Imam Al-Nawawi, volume 4, hadith number 593
Sunni Hadith
Variant: Al-Hasan ibn 'Ali said, "I memorised from the Messenger of Allah, may Allah bless him and grant him peace, 'Leave what gives you doubt for what gives you no doubt.'"

Biharul Anwar,Volume 82, Page 202
Shi'ite Hadith

“One version has, "Who is fearful of Allah and spares people from his evil."”
Riyadh-as-Saliheen by Imam Al-Nawawi, volume 4, hadith number 598
Sunni Hadith

History of the Prophets and Kings, Vol. 24, p. 98/99, also quoted in Umar Bin Abd Al-Aziz, p. 708-710
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Omar Khayyám, Rubaiyat (1048–1123), translation by Richard Le Gallienne
Well, well, what matters it! believe that too. note: Not a literal translation of Omar Khayyám's work, but a paraphrase according to Richard Le Gallienne own understanding.
Source: https://static1.squarespace.com/static/525669afe4b0b689af6075bc/t/525e8a8ee4b0f0a0fb6fa309/1381927566101/Talib+--+Le+Gallienne%27s+Paraphrase+and+the+Limits+of+Translation+from+FitzGerald+Rubaiyat+volume.pdf pp. 175-176
https://www.cambridge.org/core/books/fitzgeralds-rubaiyat-of-omar-khayyam/le-galliennes-paraphrase-and-the-limits-of-translation/CC05D35479CE33C2E66ABA8CF51F779B Le Gallienne's Paraphrase and the Limits of Translation']' by Adam Talib
To Shah Muhammad Ashiq Pahalti Translated from the Urdu version of K.A. Nizami, Shãh Walîullah Dehlvî ke Siyãsî Maktûbãt, Second Edition, Delhi, 1969, pp. 125-26.
From his letters

Umar ibn al-Khattab, Vol. 2, p. 389-390, also quoted in At-Tabqaat ul-Kabir, Vol. 3, p. 339
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