That exchange took place in 1959 in a prison in the city of Irkutsk in Russia.
وَعَلَى مَرِّ ٱلسِّنِينَ ،‏ كُنَّا أَنَا وَزَوْجَتِي مَارِيَّا عَلَى ٱسْتِعْدَادٍ أَنْ ‹ نَتَأَلَّمَ مِنْ أَجْلِ ٱلْبِرِّ › .‏