Fourier transform of $f_0(\frac1r+\frac1a)e^{-2r/a}$ in $\mathbb{R}^3$

Calculate the Fourier image \(\tilde { f } ( \vec { k } )\) of the function \(f ( \vec { r } ) = f _ { 0 } \left( \frac { 1 } { r } + \frac { 1 } { a } \right) e ^ { - \frac { 2 r } { a } }\) in \(\mathbb { R } ^ { 3 }\)