What is source the of this hadith? (nawawi, ... what has befallen you was not going to pass you by ... )

Question

http://sunnah.com/nawawi40/19

On the authority of Abu Abbas Abdullah bin Abbas (may Allah be pleased with him) who said: One day I was behind the Prophet (peace and blessings of Allah be upon him) [riding on the same mount] and he said, “O young man, I shall teach you some words [of advice]: Be mindful of Allah and Allah will protect you. Be mindful of Allah and you .... ” It was related by at-Tirmidhi, who said it was a good and sound hadeeth.

Another narration, other than that of Tirmidhi, reads:

Be mindful of Allah, and you will find Him in front of you,

Recognize and acknowledge Allah in times of ease and prosperity,

And He will remember you in times of adversity,

And know that what has passed you by [and you have failed to attain] was not going to befall you,

And what has befallen you was not going to pass you by,

And know that victory comes with patience,

Relief with affliction, and hardship with ease.

where from is the last hadith?

Answer 1

I guess you are looking for the source of Version of the hadith which you have quoted in your Question, and which differs a bit from the Version of at-Tirmidhi.

I found a link (in Arabic) which says it's from Musnad al-Imam Ahmad but an other Link gives more information

رواه أحمد (1/307) (2804)، والطبراني (11/123) (11243)، والحاكم (3/623) والبيهقي في ((الاعتقاد)) (147) قال الحاكم: هذا حديث كبير عال من حديث عبد الملك بن عمير عن ابن عباس رضي الله عنهما إلا أن الشيخين رضي الله عنهما لم يخرجا شهاب بن خراش ولا القداح في الصحيحين وقد روي الحديث بأسانيد عن ابن عباس غير هذا، وقال البيهقي: له شواهد عن ابن عباس، وصححه عبدالحق الإشبيلي في ((الأحكام الشرعية الكبرى)) (3/333).

Here my own summarized translation of the quoted text:

According this it was narrated by Imam Ahmad (Hadith #2804), Imam at-Tabarani (Hadith #11243), al-Hakim (in his Mustadrak), al-Bayhaqi in al I'tiqad (#147) both al-Hakim and al-Bayhaqi said it's according to the conditions of the two sahih Books but not quoted in them. Abdul-haqq al-Ishbyli has qualified it as sahih in his book al-Ahkam ash-shar'aya al-Kubra! Besides this hadith has a high sanad (this means a short narrator chain as al-Hakim added).

And Allah knows best!