At what point in Salah should I recite the dua اللهم إني أسألك الثبات في الأمر

I found a hadith in Sunan an-Nasa'i 1304 > It was narrated from Shadad bin Aws that: The Messenger of Allah (ﷺ) > used to say in his prayer: "Allahumma inni as'aluka at-thabbuta fi > al-amr wal-'azimata 'alar-rushdi wa as'aluka shukr ni'matik wa husna > 'ibadatik wa as'aluka qalban saliman wa lisanan sadiqan wa as'aluka > min khairi ma at'lamu wa author bika min sharri ma at'lamu > wastaghfiruka lima ta'lam (O Allah, I ask You for steadfastness in all > my affairs and determination in following the right path, I ask You to > make me thankful for Your blessings and to make me worship You > properly. I ask You for a sound heart and a truthful tongue. I ask You > for the best of what You know and I seek refuge in You from the worst > of what You know and I seek Your forgiveness for what You know.)" My question is at what rukon (Ruku/Sajdah/....) shall i say this dua.